Solve 9 = 2*q + 5*v, 2*v = 2*q - 1 - 1 for q.

2

Solve -28 = -3*c - 5*b, -336*c = -337*c - 2*b + 11 for c.

1

Solve -3*c + 13 = -f, -5*f + c + 22 = 17 for f.

2

Solve r + 2*s - 3 = 0, -5*s - 2 + 4 = -3*r for r.

1

Solve 5*j = 15, 34 = 4*z + z + 3*j for z.

5

Solve -3*u + 6 = -3*q, 5*u = -5*q + 6*q + 18 for q.

2

Solve -2 = -5*i - 2*y, 5*i - 27*y = -23*y + 26 for i.

2

Solve -4*t - 16 = 4*n, 3*n = -t - 3 - 1 for n.

0

Solve -5*y + u - 1 = -3, 0 = 3*y + 3*u - 12 for y.

1

Solve 7 = 2*x + 2*q + 5, q = -5*x + 13 for x.

3